Volcano Notification Service (VNS)

My Information

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Message Format:

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Choose the combination of notifications and volcanoes you are interested in below.

Each of the U.S. Volcano Observatories send notices independently. When an observatory has active volcanoes (usually AVO and HVO), they send daily updates, otherwise updates are less frequent.

My Notifications

Volcano notifcations are sent by volcano observatory staff using the Hazard Notification System (HANS). Search for current or past notices here.

Standard Notifications

There are two categories of standard notifications, event responses and scheduled updates.

Event responses are notices sent in response to volcanic activity or other conditions that are unscheduled. Notice types are: Volcano Activity Notification, Status Report and Information Statement.

Scheduled updates are sent daily, weekly or monthly depending on volcanic activity and each observatory's desires.

My Standard Notifications:

I do not want to receive any standard notifications.

Send all event responses, but no scheduled updates.

Send all event responses, monthly and weekly scheduled updates.

Send all event responses, monthly, weekly and daily scheduled updates.

Additional Notifications

Daily Elevated Volcanoes Summary:
The daily elevated volcano summary is a report of active volcanoes in the U.S. with a summary of any recent activity. This is separate from daily updates sent by volcano observatories and also independent of any selected volcanoes.

Volcano Activity Notice for Aviation (VONA)
Most users should not select this. A VONA is simply one of the event responses (Volcano Activity Notification) reformatted for aviation use. VONAs may not be sent when an event does not include an airborne component (such as a lava flow).

My Volcanoes

Send selected notices for these volcanoes:

Add Volcanoes

All U.S. Volcanoes

By Volcano Observatory Observatory Areas of Responsibility

All Alaska Volcano Observatory (AVO) Volcanoes

All California Volcano Observatory (CalVO) Volcanoes

All Cascades Volcano Observatory (CVO) Volcanoes

All Hawaiian Volcano Observatory (HVO) Volcanoes

All Northern Marianas Islands Volcanoes

All Yellowstone Volcano Observatory (YVO) Volcanoes

Add Specific Volcanoes

During times of inactivity, observatories publish notices that are not specifically linked to a volcano. If you choose specific volcanoes you will not receive some notices (which are almost always scheduled updates).

or
or Search:
To search, enter a volcano name, observatory abbreviation, region or state.

For help with VNS please email vnshelp@usgs.gov.

For answers to questions regarding information contained in Volcano Notices, please contact the appropriate volcano observatory:

Current volcano updates are always available at: https://www.usgs.gov/programs/VHP/volcano-updates.

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